题目

Our monitor，       it clear to us that he didn’t want to waste time playing computer games—left the Internet bar quickly. A．made             B．having made                  C．making       D．had made   答案： B   考查非谓语动词的用法。本句可改为：Having made it clear to us that he didn’t want to waste time playing computer games，our monitor left the Internet bar quickly。先声明然后再离开，故用现在分词的完成时。  

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